Breakage: Removing support for overflow fields. The only fields flywheel will care about now are those that are explicitly set as a Field()

Flywheel no longer forces raise_on_conflict to be True when you sync changes to fields that are part of a composite field. It is now up to the user to avoid putting their composite fields into an inconsistent state.

Feature: sync() has a new argument, no_read, which changes the behavior for syncing models with no changes. Instead of performing a GET, it will leave them as-is. This should make it easer to perform batch syncs without worrying as much about wasted bandwidth on GETs.

Field has renamed the data_type argument to type (data_type will still work)